Abstract
In this paper, a family of single-switch high step-up DC-DC converters based on switched-capacitor (SC) cells and coupled inductor (CL) or built-in transformer (BIT) is proposed. By replacing one active switch in the 3X-ladder switched-capacitor converter (SCC) with the primary side of a CL or BIT whose secondary side is incorporated into a multiplexed current path, the proposed topology integrates the high power-density feature of a ladder SCC with the voltage-lift effect of a CL or BIT. In addition, the problems of high current spikes and limited efficiency in the voltage regulation range of the traditional ladder SCC are tackled, making them suitable for distributed generation systems, microgrids, and so forth. For illustration purposes, the performance of the topologies within the family is compared in multiple ways, detailed operation principles and design considerations of one specific converter are given. Finally, experimental results are presented to verify the analytical findings. © 2024 John Wiley & Sons Ltd.
| Original language | English |
|---|---|
| Journal | International Journal of Circuit Theory and Applications |
| Online published | 28 Nov 2024 |
| DOIs | |
| Publication status | Online published - 28 Nov 2024 |
Research Keywords
- built-in transformer
- coupled inductor
- DC-DC converter
- switched capacitor
Publisher's Copyright Statement
- COPYRIGHT TERMS OF DEPOSITED POSTPRINT FILE: This is the accepted version of the following article: Fu, Y., Li, S., Zou, S., Li, XL., Yang, J., & Zhang, G. (2024). A Family of Single-Switch High Step-Up DC-DC Converters Based on Switched-Capacitor Converters. International Journal of Circuit Theory and Applications. Advance online publication, which has been published in final form at https://doi.org/10.1002/cta.4376.
- This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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